diff --git a/installation.md b/installation.md
index 0ec92424..a672f1ed 100755
--- a/installation.md
+++ b/installation.md
@@ -8,17 +8,10 @@ permalink: /installation/
 
 The recommended installation method is using [Composer](https://getcomposer.org).
 
-The following versions of PHP are supported:
-
-* PHP 5.5 (>=5.5.9)
-* PHP 5.6
-* PHP 7.0
-* HHVM
-
 In your project root just run:
 
 {% highlight shell %}
-composer require league/oauth2-server:5.0.0-RC1
+composer require league/oauth2-server:5.0.0-RC2
 {% endhighlight %}
 
 Ensure that you’ve set up your project to [autoload Composer-installed packages](https://getcomposer.org/doc/00-intro.md#autoloading).
diff --git a/requirements.md b/requirements.md
index 2b4ff813..cb42e1a2 100755
--- a/requirements.md
+++ b/requirements.md
@@ -8,4 +8,13 @@ permalink: /requirements/
 
 In order to prevent man-in-the-middle attacks, the authorization server MUST require the use of TLS with server authentication as defined by [RFC2818](https://tools.ietf.org/html/rfc2818) for any request sent to the authorization and token endpoints.  The client MUST validate the authorization server's TLS certificate as defined by [RFC6125](https://tools.ietf.org/html/rfc6125) and in accordance with its requirements for server identity authentication.
 
-This library uses key cryptography in order to encrypt and decrypt, as well as verify the integrity of signatures. See the [installation](/installation) page for details on how to generate the keys.
\ No newline at end of file
+This library uses key cryptography in order to encrypt and decrypt, as well as verify the integrity of signatures. See the [installation](/installation) page for details on how to generate the keys.
+
+The following versions of PHP are supported:
+
+* PHP 5.5 (>=5.5.9)
+* PHP 5.6
+* PHP 7.0
+* HHVM
+
+The `openssl` PHP extension is required.
\ No newline at end of file